An individual has an additional sex chromosome which syndrome does it refer to?
Correct answer: D. Klinefilter's syndrome
- A. Down's syndrome
- B. Turner's syndrome
- C. Jacobs syndrome
- D. Klinefilter's syndrome
Explanation
Klinefelter's syndrome is characterized by the presence of an additional X chromosome in males. The typical karyotype is 47, XXY, but variations such as 48, XXXY or 49, XXXXY can also occur.
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About Chromosomes
Chromosomes are DNA-protein structures that carry genes and become visible during cell division. Coverage includes chromatin, centromeres, sister chromatids, homologous chromosomes, chromosome number, and the distinction between diploid and haploid cells, with links to DNA replication, mitosis and meiosis.
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